device_hid_task.h File Reference


Detailed Description

Management of the USB device HID task.

This file manages the USB device HID task.

Author:
Atmel Corporation: http://www.atmel.com
Support and FAQ: http://support.atmel.no/

Definition in file device_hid_task.h.

#include "conf_usb.h"

Go to the source code of this file.

Functions

void device_hid_task (void)
 Entry point of the device HID task management.
void device_hid_task_init (void)
 This function initializes the hardware/software resources required for device HID task.


Function Documentation

void device_hid_task ( void   ) 

Entry point of the device HID task management.

Write report

Definition at line 224 of file device_hid_task.c.

References EP_KBD_IN, is_usb_hid_event(), and key.

Referenced by main().

00225 {
00226   // First, check the device enumeration state
00227   if (!Is_device_enumerated()) {
00228     return;
00229   }
00230 
00231   if (Is_usb_in_ready(EP_KBD_IN)) {
00232     if (is_usb_hid_event()) {
00233       Usb_reset_endpoint_fifo_access(EP_KBD_IN);
00234 
00236       Usb_write_endpoint_data(EP_KBD_IN, 8, key);
00237       Usb_ack_in_ready_send(EP_KBD_IN);
00238     }
00239   }
00240 }

void device_hid_task_init ( void   ) 

This function initializes the hardware/software resources required for device HID task.

Definition at line 206 of file device_hid_task.c.

References FCPU_HZ, key_timer, and TIMER_STARTUP.

Referenced by main().

00207 {
00208   cpu_set_timeout( cpu_ms_2_cy(TIMER_STARTUP, FCPU_HZ), &key_timer );
00209 
00210 #if USB_HOST_FEATURE == ENABLED
00211   // If both device and host features are enabled, check if device mode is engaged
00212   // (accessing the USB registers of a non-engaged mode, even with load operations,
00213   // may corrupt USB FIFO data).
00214   if (Is_usb_device())
00215 #endif  // USB_HOST_FEATURE == ENABLED
00216   Usb_enable_sof_interrupt();
00217 }


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